Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung lieu ho snippets" » "dung hieu ho snippets", "dung tieu ho snippets", "dung viet ho snippets", "dung lieu hoc snippets", "dung lieu hop snippets", "dung lieu so snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung lieu ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung lieu ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung lieu ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung lieu ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.